<!doctype html>
<html>
  <head>
    <title>Exercise 2</title>
  </head>
  <body>
    <ol type="I">
      <li>List item 1</li>
      <ol type="a">
        <li>Nested item 1.1</li>
        <li>Nested item 1.2</li>
      </ol>
      <li>List item 2</li>
      <ol type="1">
        <li>Nested item 2.1</li>
        <li>Nested item 2.2</li>
        <ul type="circle">
          <li>Nested item 2.2.1</li>
          <li>Nested item 2.2.2</li>
          <ul type="square">
            <li>Nested item 2.2.2.1</li>
            <li>Nested item 2.2.2.2</li>
          </ul>
          <li>Nested item 2.2.3</li>
        </ul>
        <li>Nested item 2.3</li>
      </ol>
      <li>List item 3</li>
      <ul type="disc">
        <li>Nested item 3.1</li>
        <li>Nested item 3.2</li>
        <li>Nested item 3.3</li>
      </ul>
    </ol>
  </body>
</html>
